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POUIWebView: webViewDidStartLoad/webViewDidFinishLoad delegate methods not called when loading certain URLs
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  1. POUIWebView: webViewDidStartLoad/webViewDidFinishLoad delegate methods not called when loading certain URLs
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    copied!<p>I have basic web browser implemented using a <code>UIWebView</code>. I've noticed that for some pages, none of the <code>UIWebViewDelegate</code> methods are called.</p> <p>An example page in which this happens is: <a href="http://www.youtube.com/user/google" rel="noreferrer">http://www.youtube.com/user/google</a>. Here are the steps to reproduce the issue (make sure you insert <code>NSLog</code> calls in your controller's <code>UIWebViewDelegate</code> methods):</p> <ol> <li>Load the above youtube URL into the <code>UIWebView</code> [notice that here, the <code>UIWebViewDelegate</code> methods do get called when the page loads]</li> <li>Touch the "Uploads" category on the page</li> <li>Touch any video in that category [<strong>issue:</strong> notice that a new page is loaded, but none of the UIWebView delegates are called]</li> </ol> <p>I know that this is not an issue of <code>UIWebView</code>'s delegate not being set properly, since the delegate methods do get invoked when loading other links (e.g. if you try clicking on a link that takes you outside of youtube, you'll notice the delegate methods getting called).</p> <p>My gut feeling initially was that it might be because the page is loaded using AJAX, which may not invoke the delegate method. But then when I checked the iPhone's Safari, it did not exhibit this problem, so it must be something on my side.</p> <p>I've also noticed that Three20's <code>TTWebController</code> has the exact same issue as I'm having.</p> <p>But the problem that arises from this issue is that without the delegate methods called, I'm unable to update the UI to enable/disable the back and forward browsing buttons when new requests are loaded.</p> <p>And idea why this is happening or how can I work around it to update the UI when a new request is made?</p>
 

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